Nozzle for the delivery of water or other liquid under pressure



June 26, 192 3.

C. R. FLEMING-WILLIAMS NOZZLE FOR THE DELIVERY OF WATER 0R OTHER LIQUIDUNDER PRESSURE Filed Sent. 1921 CLIFFORD ROGER FLEMING-WILLIAMS, OF LAKEW'INDERMEBE, ENGLAND.

NOZZLE FOR THE DELIVERY OF WATER OR OTHER LIQUID UNDER PRESSURE.

Application filed September Tocll whom it may concern 1 Be it known thatI, CLIFFORD ROGER FLEM- ING-VVILLIAMS, a subject of the King of GreatBritain, residing at Hill ofUaks,

Lake lVindermere, in the county of Lancaster, England, have invented anew or improved Nozzle tor the Delivery of Water or Other Liquid UnderPressure (for which I have'iiled an application in Great Britain onMarch 19, 1919, No. 6899), of which the following is a specification.

This invention relates toa new or improvide nozzle and the object aimedat i to produce a nozzle of simple construction and capable of a highdegree of efficiency, the said nozzle being of the type comprising arestricted orifice at a distance from the delivery orifice and adaptedwithout the use of valves, for projecting either a solid concentratedjet of water or other liquid at a relatively high velocity, or, at will,a more dif fused jet covering a larger area and at a materially lowerpressure or velocity.

According to this invention, the nozzle stricted inlet opening ispreferably made convex towardsthe flow, and the discharge or outletorifice is conveniently provided with an annular flaring lip. The bulbor enlargement may be globular, but whether globular, egg-shaped or ofless diameter axially than transversely, it may be provided with a ribor ribs on the interior and in the neighbourhood of the-outlet orifice.

These ribs may be concentric and parallel with the delivery orifice, orthey may be,

axial or inclined to the axis. Upon turning on the water, a highvelocity jet may be projected without touching the sides of the tubularbody or bulb. If, then, a diifused jet is required, the delivery ischecked as by placing the hand over the outlet orifice, whereupon the liuid will be obstructed in the nozzle and will form eddies therein, sothat it is delivered in a diflused or annular form at a materially lowerpressure or velocity than before.

In order to enable this invention to be 1, 921. sea-.11 No, 497,778.

readily understood, reference is made to the accompanying drawing inwhich: Figure l is a side elevation of a nozzle de vice constructed inaccordance with these improvements, and

Figure 2 is a longitudinal section through the nozzleseen in Figure 1. i

Fig. 3 is a longitudinal section of a modified form.

Referring to, the drawing, a is the tubular part of the nozzle formedwith the restricted inlet or opening 6 at the inlet end,that is to saythe end that is inserted into the hose or other pipe. The tubular part amerges into a bulbous part 0 which, as shown in the drawing may beglobular, although it may be. of any bulbous formation, as indicatedabove. The bulbous part 0 may be formed with a flared lip (Z around thedelivery oricIJ;

formed without it as indicated in Fig. 3.

The exterior of the tubular part may be I formed with ribs 9 or the likefor improving its hold in a hose pipe in known manner.

In the construction illustrated, the interior of the bulb c is formedwith annular ribs,

serrations, or other suitable projections it, these being preferablyconcentric with the delivery orifice and adjacent thereto. It' will benoted that the portionof the nozzle surrounding the inletopening Z) .ismade convex. towards the direction of the flow, this formation beingpreferred in practice.

In use, the nozzle is fitted on to a hose in any suitable manner, as byforcing the tubular part a with the ribs 9 into the end of a hose pipe,or by screwing, or by any other known means. Upon turning on the water,

a jet may pass straight through from the inlet opening 6 to the deliveryorifice c, without touching the interior of the tubular part a or thebulbous part 0. Such a jet would have a, high velocity and be of a solidand concentrated form. When a diffused jet is required, the hand, or anyother obstruction, is placed over the delivery orifice e or in the wayof the jet so as to sufficiently obstruct the same. Thereupon, thenozzle or bulb becomes more or less filled, so that the water strikesthe interior and particularly the ribs or the like at h. This actionwill continue after removing the hand, so that the user will now havethe diffused jet, or jet of lower velocity, as will be readilyunderstood. When the'high velocity jet is The nozzle. device may beinadewholly or.

partly of metal, but it may also be made of india rubber, vulcanite orother suitable material. If the bulb be made of rubber, the momentarycessation or retardation of the flow may be effected by pinching thebulb.

A nozzle constructed in accordance with these improvements, may be usedwherever it is. required to deliver water or other liquid soinetimesin aconcentrated jet form'and sometimes in diffused form. For example, inwashing coach Work, and where the mud is thickly caked, only astrong jetwill remove the mud, but a diffused jet is essential When the same is tostrike the delicate surface of the paint or varnish of thecoach Work. j

I claim 1. A nozzle of the kind herein referred to and comprising atubular portion having a restricted orifice at one end, and a bulbouschamber of larger cross sectional dimensions than said tubular portion,said chamber communicating with said tubular portion and having arelatively large delivery orifice in axial alignment with said tubular.portion substantially as set forth.

2. A nozzle of the kind herein referred to and comprising a tubular parthaving a restricted orifice atone end, a bulbous chamber connected withsaid tubular portion and having larger cross sectional dimensions thansaid tubular portion and a delivery orifice of" relatively largediameter opposite the point of connection of said tubular portion, andformations presenting an uneven sur face on the interior of said chambersubstantially as set forth.

3. A nozzle of the kind herein referred to and comprising a tubularparthaving a re 'stricted orifice at one end bulbous chamher connected withsaid tubular portion and .having larger cross sectional dimensions thansaid tubular portion and a delivery orifice of relatively large diameteropposite the point of connection of said tubular portion, and ribs onthe interior surface of said chamber said ribs being adjacent to theparallel with said orifice substantially as set forth.

i. A nozzle of the kind herein referred to and comprising a tubular parthaving one 7 end closed by an outwardly convex well formed with a smallcentral aperture andja hollow bulb joined to the opposite end of saidtubular portion, said bulb having a dc.- livery orifice of relativelylarge diameter axially aligned with said aperture substam tially as setforth. v

5. A nozzle of the kind herein referred to and comprising a taperedtubular part formed with a restricted inlet opening at its small end andmerging into a globular enlargement at its delivery end, saidenlargement be ng formed with a relativelylarge delivery or fice axiallyaligned with said inlet opening substantially as set forth.

6. A nozzle of the kind herein referred to and comprising a tubularpart'having a" restricted inlet orifice at one end and a de'- formable bulbat its opposite end said bulb having a delivery orifice of relativelylarge diaii-ieter axially aligned with said inlet orifice substantiallyas set forth.

l. A nozzle of the kind herein referred to and comprising a tubularportion with a restricted inlet orifice atone end and a bulbous chamberat the other end, saidchainber having a deliveryoriiice of smaller areathan the greatest cross sectional area of'said bulb but of much largerareathan saidinlet orifice substantially as. setv forth.

CLIFFORD ROGER FLEMING-WILLIAMS.

